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What’s Going on in the Lab? Bungee Jumps!

Oh my goodness y’all!! This post is jam-packed with deliciousness all about our latest STEM Adventure!
All About Bungee Jumping!
STEM Challenge:Can you find the exact number of bungee cords Barbie needs to have a safe jump? Experiment and find out- then design the perfect device!
Let me just tell you that when this began to come together I was so excited! I knew my fifth graders would LOVE this! And they did!
First, you have to watch this. I just learned how to make movies and I am having a blast producing things! You should see my cat movies…..
Okay, that was pretty cool, I know!
Here’s the background of this challenge!
This idea came from a student! She mentioned bungee jumping one day as we were talking about our fourth graders recent visit to the Space and Rocket Center. It seems they have a bungee jumping contraption there that many of our students tried. (Not a real tower jump, more like a trampoline.) Anyway, I started thinking about jumping or dropping something. My first thought was to use eggs….. then I thought about a Barbie doll!
First off, I needed Barbies!
Off to the Dollar Tree. I came home with a bag full of Barbies, added weights to them to make them a little heavier and then attached our “bungee cords”.
STEM Challenge:Can you find the exact number of bungee cords Barbie needs to have a safe jump? Experiment and find out- then design the perfect device!
Okay, what to do with them? My students love to experiment so I added some testing to this.
The kids tested Barbie with an increasing number of cords.
STEM Challenge:Can you find the exact number of bungee cords Barbie needs to have a safe jump? Experiment and find out- then design the perfect device!

STEM Challenge:Can you find the exact number of bungee cords Barbie needs to have a safe jump? Experiment and find out- then design the perfect device!

STEM Challenge:Can you find the exact number of bungee cords Barbie needs to have a safe jump? Experiment and find out- then design the perfect device!
They filled out a data table with the jump results and averaged the data for each test level.
Then, are you ready for this??

We used the data to plot points on a line graph and did some fabulous math to extend our graph lines and predict how many cords would be needed to drop Barbie from a much higher spot.

After deciding the number of cords, kids got the dolls ready and I stood on a stool to drop her from our doorway.
The arrows in the photos below are pointing to Barbie. It’s hard to catch a Barbie in a still shot- especially when I had students taking the photos!
STEM Challenge:Can you find the exact number of bungee cords Barbie needs to have a safe jump? Experiment and find out- then design the perfect device!

STEM Challenge:Can you find the exact number of bungee cords Barbie needs to have a safe jump? Experiment and find out- then design the perfect device!

STEM Challenge:Can you find the exact number of bungee cords Barbie needs to have a safe jump? Experiment and find out- then design the perfect device!

STEM Challenge:Can you find the exact number of bungee cords Barbie needs to have a safe jump? Experiment and find out- then design the perfect device!
This was such fun and SO FULL OF MATH!
This challenge is now number three on our list of favorites- right behind Pancakes and Roller Coasters!

STEM Challenge:Can you find the exact number of bungee cords Barbie needs to have a safe jump? Experiment and find out- then design the perfect device!

Join me next week for more:

Coming Soon:
Paper Bridges
Marble Runs
Flood Barriers
Water Towers

Comments

  1. Unknown says

    Hi! This looks like so much fun! What an adventurous Barbie. I'm your newest follower but I can't figure out the picture thing so I am just a blank head 🙂

  2. Carol Davis says

    Thanks for stopping by! I think the photo that appears needs to be your photo that is loaded into your Google account. Try going to your Google+ page or your gmail account and changing the picture!

  3. Unknown says

    For your "cords", did you use rubberbands or yarn? I know you used bands around the feet, but what did hang from the wall and doorway?